Hi I am trying out too many new things in Java, mixing spring boot with temporal. My workflow implementation skeleton is approx like this; @Component public class DocumentWorkflowImpl implements DocumentWorkflow { private static Logger logger = Workflow.getLogger(DocumentWorkflowImpl.class); @A…

We have plans to support Spring boot natively. Until then I would not recommend using dependency injection for workflows. Workflows should not directly depend on any external objects, so injecting them as dependencies is not a good idea. Read the documentation about other limitations that the workfl…

Michel, I still think that accessing any configuration inside the workflow code is a bad idea. The reason is that configuration by definition can change and such change can break determinism. While changing an activity task queue name is indeed a backward-compatible change it is too easy to use it …

Thanks Maxim, I like that idea. I also completely agree that that is a lot more in accordance with the design. Got a small poc working with min.io . Now onto a kubernetes deployment. To connect to a remote temporal deployment; I only need to set the target to the ip/hostname through WorkflowServic…

What is the reason to use the object storage? If objects are not large you can keep them inside the workflow code directly. You are correct. WorkflowServiceStubsOptions.Builder setTarget(java.lang.String target) is the right API to configure the service endpoint.

The workflow will be for ocr-ing pdf documents and store the result in s3 so we can later further process them, entity recognition etc, and send to solr. The documents will come from a webscraper in python and will need to be stored somewhere, nfs or s3 I think makes sense as an intermediate storage…

I see. This use of the store for intermediate large files make perfect sense for me. The use case looks like a very good fit for Temporal.

Yes, I agree, pretty enthusiastic about the project. Checked out some other projects but this one and agro proj seems to be the most promising ones. :smiley: Just hoping there isn’t hell after the simple hello world :wink:

[image] maxim: This way it will be recorded into the workflow execution history and is not going to break any running workflows if updated. i had a usecase where a config change was required to something underworflow, and i used a signal,

Yes, signal is the best way to notify about any external world changes to the workflow.

What is the (tentative) timeline for supporting Spring Boot natively?

I found this repo, so maybe it’s already supported? [image] applicaai/spring-boot-starter-temporal The driver making it convenient to use Temporal with Spring Boot. - applicaai/spring-boot-starter-temporal

How to register a spring boot workflow implementation

Community Support

arnesenfamily September 7, 2021, 5:52pm 24

Not specifically spring-boot but this thread has an example of a spring option I’m currently using to dynamically locate and register workflow/activity implementations.

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How to register a spring boot workflow implementation

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